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Old 03-25-2015, 09:18 AM
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xtreem3d xtreem3d is online now
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Soda blasting vs power washing

Hi Guys,
I'm in the lawn and hardscape forums but have been asked by a property to power wash some concrete walls and block retaining walls. The walls were not sealed ( like you would pavers) when they were built so they have a sort of blackish mold/fungus/dirt tint on them. I just don't think power washing is going to work but maybe soda blasting will. Do any of you soda blast along with power wash , that could make the comparison for me?
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Steve
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Old 03-25-2015, 07:31 PM
NateF NateF is online now
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A picture would help but I think I know exactly what you are talking about. I am just in the process of starting a lawn care/property maintenance business but I owned a power washing business for over 5 years. Most likely you can just take a mix of bleach, water, and some kind of soap "simple cherry from Pressure Tek works great" and put it in a pump sprayer and spray it on and let it dwell for a bit then wash with pressure washer "not with 0 degree tip" Hot water works best if your power washer has it. You can also run the solution through your downstream injector if your washer has it. I may have a few questions for you guys on lawn care but will surely help out as much as I can with any power washing/restoration questions.
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Old 03-29-2015, 09:12 AM
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Dykstraoutdoor Dykstraoutdoor is offline
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From what you are describing I dont think you need to soda blast the wall, a strong roof mix should work great at cleaning the wall.
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Old 03-30-2015, 08:35 AM
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xtreem3d xtreem3d is online now
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What would a strong roof mix consist of? Obviously I don't do this regularly
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Old 04-17-2015, 03:55 PM
franklinliquidations franklinliquidations is offline
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The only time I've ever seen walls need soda blasting was due to bad efflorescence problems - whitish salt deposits from in the block or behind the wall leaching through. Bleach and detergent plus some pressure washing should do the trick for what you describe.
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